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Turn array containing array of numbers into formatted version

Trying to solve this puzzle in JavaScript:

Input: An array containing x amoung of arrays of numbers. Heres example:

[
[1,4],
[6,8],
[10]
]

Expected Output: I would want to run some sort of code to turn it into:

1-4,6-8,10

I've tried join("-") and tried the same thing within a forEach() loop but can't quite get it to work

about 4 years ago · Juan Pablo Isaza

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Answer 1 · 2022-07-05T15:56:17.658Z

You can use map the array and join each item by a dash, then join the resulting array.

const arr = [
  [1, 4],
  [6, 8],
  [10]
]

const res = arr.map(e => e.join('-')).join()
console.log(res)

Answer 2 · 2022-07-05T15:56:17.665Z

You can use map to iterate over the array, join up each nested array with a dash, and then finally join up the array that map returns into a comma-delimited string.

const arr = [[1,4],[6,8],[10]];

const out = arr.map(a => a.join('-')).join(',');

console.log(out);

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Turn array containing array of numbers into formatted version

2 Respostas

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Encontrar trabalhos remotos

Andres GPT